Knotting attachment for twisting or spinning machines.



PATEN'IED APR. 18, 1905.

H. G. BEEDE. KNOT'IING ATTACHMENT FOR TWISTING 0R SPINNING MACHINES.

APPLIOATION FILED D30. 3, 1903.

4 SHEETS-SEEET 1.

llilllllllllllll Lm i LL 1) NIH! PATENTED APR. 18, 1905.

H. G. BEEDE. KNOTTING ATTACHMENT FOR TWISTING OR SPINNING MACHINES.

APPLICATION FILED D110. 3, 1903.

4 SHEETS-SHEET 2.

PATENTED APR. 18, 1905.

H. G. BEEDE. KNOTTING ATTACHMENT FOR TWISTING OR SPINNING MACHINES.

APPLIOATION FILED 1330.3, 1903.

4 SHEETS-SHEET 3.

EC/ewfat':

G. Beads 6/: itlprngm No. 787,426. PATENTED APR. 18, 1905. H. G. BEEDE.KNOITING ATTACHMENT FOR TWISTING OR SPINNING MACHINES.

APPLICATION FILED DEC. 3, 1903.

4 SHEETS-SHEET 4.

' 1 g IIIIIIIIIIIII? I T a I! II: I I. I ,I N d f I I I I 1" LL I725 era05; IIIIIIIIII I III IIII Q Q figfi e UNITED STATES Patented April 18,1905.

PATENT @FFICE.

HERBERT (,ir. BIIIGDE, OF PAIVTUUKFI, RIIODE ISLAND.

SPECIFICATION formingpart of Letters Patent No. 787,426, dated April 18,1905.

Application filed December 3, 1903. Serial No. 183,681.

1'0 rzJ/ IU/HHH/ it may concern.-

Ile it known that I, HERBERT (l. BIGIGDIG, a citizen of the UnitedStates, residing at Pawtucket, in the county of Providence and State ofRhode Island, have invented certain new and useful Improvements inKnotting Attachments for Twisting or Spinning Machines, of which thefollowing is a specification.

My invention relates to twisting or spinning machines, and moreparticularly to a knotting attachment for said machines for making nubsor knots, loops, and spiral twists in the twisted yarn.

A knotting attachment for making knots, &e., in the twisted yarnconsists of two or more sets of rolls and a thread-guiding mechanism tofeed and direct the threads to the twisting mechanism of atwisting-machine of any usual and ordinary construction.

In order to produce an uneven twist when two or more ends or strands ofyarn are twisted together into a single twisted thread, one or more endsor strands of yarn are fed between the upper rolls and directly in frontof the threzul-guide to the ring and spindle of the twisting-machine,and one or more ends or strands of yarn are fed between the bottom rollsand pass through the thread-guide and are twisted around thefirst-mentioned thread by the twisting motion of said thread. If thethread-guide bar is allowed to remain stationary and the bottom rollsfeed the yarn more rapidly than the upper rolls feed the yarn, then theyarn from the bottom rolls is drawn or twisted around the yarn from theupper rolls and spirally-twisted yarn is produced. If the thread guidebar is allowed to remain stationary and the upper rolls are operated tofeed the yarn intermittently while the bottom rolls are operated to feedthe yarn continuously. a nub or knot is produced at predeterminedintervals on the yarn from the upper rolls. If the thread-guide bar isallowed to remain stationary and the upper rolls are operated to feedthe thread intermittently and the bottom rolls are also operated to feedthe thread intermittently, a nub or knot is produced alternately firston the thread from the upper rolls by the winding on of the thread fromthe lower rolls and then on the thread from the bottom rolls by thewinding thereon of the thread from the upper rolls. In this case neitherstrand of yarn passes through the guide, but both pass under italternately. If the thread-guide bar is operated by its mechanism toguide the yarn fed between the bottom rolls onto the yarn fed betweenthe upper rolls, various forms of nabbed or knotted yarn are produced,according to the movement of the thread-guide bar and according to theratio of feed of the upper and bottom rolls,as will be well u nd erstoodby those skilled in the art. I f at the same time that the threadguidebar is operated either or both of the upper and bottom rolls areoperated intermittentl y synchrmious with the movement of the thread-guide bar and its mechanism, then twisted yarn with spirals, nubs, orknots of various forms is produced.

Hereto'forc the knotting mechanism of the class above referred to hasbeen made a part of-the twisting-machine and when not in use has beenleft on the machine.

The object of my invention is to make the knotting mechanism detachablefrom the ordinary twisting-machine and also to improve upon the ordinaryconstruction of the knotting mechanism.

My invention consists in certain novel features of construction of myimprovements, as will be hereinafter fully described.

Referring to the drawings, Figure 1 is a front view of one end of adetached portion of a twistinganachine, showing some of my improvementsapplied thereto. Fig. 2 is a detached sectional detail of the brakemechanism for the upper and bottom rolls, taken at a point indicated byline 2 2, Fig. 8. looking in the direction of arrow a, same figure. Fig.3 is a section on line 3 3, Fig. 1, looking in the direction of arrow[1, same figure. Fig. at shows, on an enlarged scale, one of theknotting-guides shown in Fig. I. Fig. 4 is a section on line t t, Fig.4, looking in the direction of arrow g, same Iigure. Fig. 5 shows amodified construction of the knottingguide shown in Fig. &. Fig. 6 showsthe front view of a centrally-pivoted link pivotally attached at eachend to the upper and lower guide-wire rod. Fig. 7 is a section on line 77, Fig. 6, looking in the direction of arrow 0, same figure. Fig. 8 isasectional end view of the parts shown in Fig. 1 looking in thedirection of arrow (Z, same figure, and showing the knotting-motionrocker-lever and some parts not shown in Fig. 1. Fig. 9 is an edge viewof the rocker-lever shown in Fig. 8. Fig. 10 shows the upper-roll standand the stand for the guide-wire rod secured thereto with the shoe andthe rod held therein detached. Fig. 11 shows the detachable connectionof a supporting-arm of the knotting guide-bar. Fig. 12 shows an end viewof the chain of gears shown in Fig. 14 for driving the upper-roll gear,the bottom-roll gear, and the rocker-lever gear. The inclosing case isshown in section. Fig. 13 shows, on an enlarged scale, a detachedportion of one of the gears with pointed teeth and mutilated. Fig. 1 1is a front view of the gears shown in Fig. 12 and of the driving-gearlooking in the clirection of arrow f, same figure. The front part of theinclosing case is not shown. Fig. 15 is a section on line 15 15, Fig.12, looking in the direction of arrow 6, same figure; and Fig. 16 showsa modified construction of a portion of the gearing shown in Fig. 1 1.

I have only shown in the drawings sufficient parts of a machine fortwisting yarn of well-known construction, with my improvements combinedtherewith, to enable those skilled in the art to which my inventionbelongs to understand the construction and operation of my improvements.

In the accompanying drawings, 1 is a portion of the frame of thetwister.

2 is the lower-roll stand, having a bearing 2 for the end or journal 3'on the lower roll 3. The stand 2 has a stand 1 thereon (see Fig. 8) forthe top roll 5.

6 is the guide-wire traverse-rod stand (see Fig. 8) for the traverse-rod7, carrying the guide-wires 8 and adapted to have a traverse motioncommunicated thereto in the ordinary way by mechanism of ordinaryconstruction. (Not shown.)

Said mechanism may be similar to the mechanism shown and described in myPatent No. 661,301.

The above-described parts are common and well known in ordinary twistersfor twisting yarn.

Heretofore in case the twister has mechanism for knotting the thread ithas been customary to have this mechanism a permanent part of thetwister, and when the twister is operated as a simple twister theseparts are left on the twister, but are not used.

In the ordinary use of twisters the mechanism for knotting the thread isused only a small portion of the time, and one object of my improvementsis to make the knotting mechanism independent of and readily detachablefrom the ordinary twisting mechanism.

In the ordinary construction of a twister with the knotting mechanismthere is a rollstand which carries both the upper and bottom rolls,making a special machine. In my improvements I provide a separate standfor the upper rolls, which stand is preferably so constructed that atits lower end it straddles the regular lower-roll standwithoutinterfering in any way with the simple twister parts and can thusbe readily attached and detached.

The upper-rollstand 9 is shown detached in Fig. 10. It is made yokeshape at its lower end 9, as shown, to straddle the base 2 of thelower-roll stand 2 and is detachably secured to the frame by bolts 10.The upper end of the stand 9 has a bearing 9 for the journal of theupper roll 11 and also a socket 9 for the lower end of the bracket 12 ofthe top roll 13.

To the rear side of the upper end of the stand 9 is removably attachedby a bolt 1 1 the stand 15 for the upper traverse-rod 16, having theguide-wires 17 thereon.

The rod-stand 15 is preferably made as shown in Fig. 10. The upper endof the stand is made with the hook portion 15, into which extends theprojection 18 on the shoe 18, attached to the rod 16. as is customary.(See Fig. 8.) A roll 19 in the lower part of the stand 15 furnishes abearing for the shoe 18 on the rod 16.

By moving the rod 16 lengthwise sufficient to disengage the projection18 on the shoe 18 from the hook 15' on the stand 15 the shoe 18 and rod16 may readily be removed or dis connected from the stand 15 withoutremoving the guide-wires 17 This is not the case in the ordinaryconstruction.

The construction of the lower-rod stand 6 and the shoe on the rod 7, asshown in Fig. 8, corresponds in this instance to the construction of theupper stand 15 and rod 16, above described.

The upper traverse guide-wire rod 16 is preferably rigidly connectedwith the lower guide-wire rod 7, to have a traverse motion with it, by aplate or bar 20, which is hook shape at its upper end and extends overand is secured to the top of the upper rod 16 by screws 21 and is forkshape at its lower end and extends over the upper part of the lower rod7 and is removably attached to the rear thereof by a screw 22. (See Fig.3.)

Instead of attaching the traverse guide-wire rods 16 and 7 together bythe plate or bar 20 they may be attached together by a bar or lever 23,centrally pivoted on a stud 24 and pivotally connected at each end by ascrew 23 with the rods 16 and 7, as shown in Figs. 6 and 7. By thisconstruction a traverse motion communicated to the lower rod 7 will,through lever 23, be simultaneously communicated to the upper rod 16,only in a different direction.

To the rear edge and at the lower part of the upper-roll stand 9 isremovably attached a box or bearing (see Fig. 10) for the rockershaft 26of the knotting-bar 27. The knotting guide-bar 27 (a detached portion ofwhich is shown in Fig. 1) is intended to extend the length of themachine and is supported and secured in the outer ends of arms 28, (onlyone of which is shown.) The inner end of the arm 28 has preferably anopen-end slot 28 therein, which fits onto and is secured to therocker-shaft 26 by a set screw or bolt 29. (See Figs. 8 and 11.)

The knotting guide-bar 27 has a series of recesses or notches 27 in itslower edge, and in front of each notch extends a thread-guide 30, whichpreferably consists of two parallel strands of wire'connected togetherat one end by an eye to receive an attaching-screw 31. One of thestrands has its other end bent and extending through the bar 27 andsecured thereto, and the other strand has its end free, so that thethread can be passed under it. (See Figs. T and 4?.)

Instead of the wire guide 30, above described, I may use a plate 32,riveted to the bar 27 and slotted centrally, with one end of the slottedportion free and bent to allow the thread or yarn to be passed under it.(See Fig. 5.)

It will be understood that one, two, or more of the knotting guide-barswith the guides thereon may be used, arranged one above the other,according to the numbers and variety of knots or nubs required. Thethread or yarn from the upper rolls 11 and 13 passes in front of theguides on the guide-bar 27, while one or more threads or yarns from thelower rolls 3 and 5 pass through the notches 27 in the knottingguide-bar 27 and through the guides 30 thereon to the thread in front ofthe guides, to form a nub 0r knot thereon, as shown in Fig. i, by beingdrawn or twisted around the thread or yarn from the upper rolls.

.1 will now describe the rocker-lever of my improved constructionattached to the rockshaft '26 to communicate a rocking motion thereto.The rocker-lever has a swingingor pivotal adjustment to vary thevertical position of the knottingguide-bar 27. The rockerlever has alsoa longitudinaladjustment to vary the up-and-down movement of theknotting guide-bar 27. The rocker-lever preferably consists of threeparts-the lever proper 3%, (see Figs. 8 and 9,) which has a hub 3stsecured on the rock-shaft 26; the adjustingpiece 33, which has a hub 26loose on the shaft 26 and is adjustably connected to the part 34: by abolt 35, extending through a slot or opening 33 in the part 3i, and theengaging end 36, which is adjustable longitudinally on the part by abolt 37, extending through a slot 3%" in the part 33. The engaging end36 of the lever carries a pin 38, adapted to travel on the periphery ofa cam 39, mounted on a stud it) and secured to the face of a gear 41 bya pin 4:), also loosely mounted on the stud 40. The position of the cam39 and the gear a1 is adjusted to correspond to the adjustment of theparts of the rocker-lever by moving the attached end of the stud 40 in aslot i3 on the supporting frame or stand. (See Fig. 12.) The amount ofthe adjustment of the stud 40 is regulated by the position of theopen-end slot 36 in the end 36 of the rocker-lever relatively to the endof the stud 40, on which the cam 39 is mounted. By means of theadjustment of the end 36 on the part of the rockerlever the amount ofmotion of the rockerlever can be varied, and by the use of differentcams different movements can be communicated to the rocker-lever andthrough said lever to the knotting-guide-bar-supporting arms 28 and theknotting guide-bar 27.

As a part of my improvements 1 have com bined with the upper roll abrake mechanism, as shown in Figs. 1 and 2. The brake may be applieddirectly to the journal of the roll or to a shell or collar on thejournal. 1 have shown it in the drawings applied to a shell on thejournal. The shell i-L (see Fig. 2) is in this instance mounted in a boxor bearing to, secured to the outer side of the upper-roll stand 9 atits upper part. The box has an extension 45' thereon with an opening 45therein to receive a friction-shoe *6, which bears against the shell H,and a spiral spring 47, which bears against said shoe, and is compressedby a set-screw 4S,turning in a threaded hole in the cap piece or plate49, secured by bolts to the top of the box 4:5. (See Fig. 2.) By turningthe screw etS in or out the friction of the shoe 4:6 on the shell H isregulated. A similar brake mechanism may be used on the lower roll 3, ifdesired, and may be applied directly to the journal of the roll insteadof on the shell, as above described. The shell or collar H has thedriving-gear 59 splined thereon and drives the roll 11 through theconnection between the roll-journal 11 and the collar H, whichconnection is a key 11, in this instance on the journal 11, extendinginto and having a clearance in a keyway H in the collar H. (See Fig.12.)

By means of the keyway 44 the sudden stopping of the gear 59 and thecollar 4-]: will not simultaneously stop the rotation of the roll 11;but the impetus acquired by said roll in its rotation will continue torotate said roll until the key 11" reaches the end of the keyway 4A. Inthis way the sudden stoppingof the roll 11, with the gear 59, isprevented, and there is an opportunity also for any backlash or movementof the roll 11.

I will now describe the chain of gears shown in Figs. 12 and 1%, whichmay be used in connection with my improvements. 5L is the main drivengear, fast on the outer end of a short shaft 52, journaled in suitablebearings 53 on the frame or casing. (See Fig. 14:.) On the inner end ofthe shaft 52 is fasta gear 54, which meshes with a gear 55, loose on astud 56, supported in and removable from a slotted bearing 57. (See Fig.12.) Fast on the hub of the gear 55 is a change-gear 58,

which meshes with a gear 59, splined on the shell 44 on the journal 11of the roll 11. On the end of the journal of the lower roll 3 is fast agear 60, which meshes with and is driven by a change-gear 61, fast onthe hub of the gear 64, loose on the stud 62, which is supported in andremovable from a slotted bearing 63. (See Fig. 12.) The gear 64 mesheswith and is driven by a gear 65, fast on a shaft 66. The gear mesheswith and is driven by the gear 54 on the shaft 52. Said gear 54 thuscommunicates, through gear 65, gear 64, and gear 61, rotary motion tothe gear 60 of the lower roll 3. (See Fig. 12.) The gear 41 foroperating the cam 39 of the rocker-lever meshes with and is driven by achangegear 67, fast on the hub of a gear 7 O, which is loose on a stud68, which is supported in and removable from a slotted bearing 69. (SeeFig. 12.) The gear meshes with and is driven by a gear 71, fast on theshaft 72. The gear 71 meshes with and is driven by the gear 65, which inturn meshes with and is driven by the gear 54 on the shaft 52. Said gear54 thus communicates, through gear 65, gear 71, gear 70, and gear 67,rotary motion to the gear 41, operating the cam 39 of the rocker-lever.(See Fig. 12.)

It will thus be seen that by the arrangement of gears above describedand shown in Figs. 12 and 14 motion is communicated from a chain ofthree gears 54, 65, and 71, through a separate spur-gear and achangegear, to each of the three driven parts-the upper roll, the lowerroll, and the cam of the rocker-lever. This arrangement of gears allowsthe speed of the upper roll and of the lower roll and of the cam of therocker-lever to be regulated independently of each other and to becontrolled uniformly, as desired, according to the size of thechange-gears. In this way the speed of the upper feed-rolls may beincreased or diminished relative to the speed of the bottom rolls andthe speed of the cam, and the speed of the bottom rolls may be increasedor diminished relative to the speed of the upper rolls and the speed ofthe cam, and the speed of rotation of the cam may be varied relative tothe upper rolls or the bottom rolls, as desired. By making thechange-gears 58 or 61 mutilated an intermittent feed of the thread andalso an intermittent movement of the lower rolls and an intermittentfeed of the thread is obtained.

In Fig. 16 is shown a modified construction of the chain of gears whichmay be used for certain forms of yarn. In this construction the gear 59of the upper roll 11 and the gear 60 of the lower roll 3 are both driventhrough the double gear 73, which is preferably a mutilated gear, forgiving intermittent motion,

through the gears 39 and 60, to the upper and lower rolls, fast on thehub of the gear 55, which is loose on the stud 56.

I prefer to make the gears 59 and 60 on the rolls 11 and 3 and thechange-gears 58 and 61 with sharp or pointed teeth, as shown at 74, (seeFig. 13,) to obtain a sure meshing of the gears when the change-gears 58and 61 have a part of the teeth removed to obtain an intermittentmotion, making them mutilated gears, as above referred to.

It will be understood that the details of construction of myimprovements may be varied, if desired.

I have particularly described herein my improvements in connection withtwisting-machines or machines for twisting yarn; but they may also beused in connection with spinningmachines or machines for spinning yarn.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a twisting or spinning machine, the combination with thelower-roll stand, of a removable upper-roll stand carrying the upperrolls, and having its lower end yoke shape to straddle the foot of thelower-roll stand, substantially as shown and described.

2. In a twisting or spinning machine, the combination with thelower-roll stand, of a removable upper-roll stand carrying the upperrolls, and having its lower end yoke shape to straddle the foot of thelower-roll stand, and adapted to be secured to the same beam as thelower-roll stand, substantially as shown and described.

3. In a twisting or spinning machine, the combination with thelower-roll stand, of a removable upper-roll stand carrying the upperrolls, and having its lower end yoke shape to straddle the foot of thelower-roll stand, and having the rocker-shaft bearing attached to saidupper-roll stand, substantially as shown and described.

4. In a twisting or spinning machine, the combination with thelower-roll stand, of a removable upper-roll stand carrying the upperrolls, and having its lower end yoke shape to straddle the foot of thelower-roll stand, and a bearing for the rocker-shaft detachablyconnected with said upper-roll stand, substantially as shown anddescribed.

5. In a twisting or spinning machine, a removable upper-roll stand,carrying the upper feed-rolls and having a yoke-shape foot to extendover the foot of the lower-roll stand, and be secured to the same beam,of a guide-wire traverse-rod stand attached to the upper-roll stand,substantially as shown and described.

6. In a twisting or spinning machine, a removable upper-roll stand,carrying the upper feed-rolls, and having a yoke-shape foot to extendover the foot of the lower-roll stand, to be secured to the same beam,of a guide-wire traverse-rod stand detachably attached to the upper-rollstand, substantially as shown and described.

7. In a twisting or spinning machine, the combination with the knottingguide-bar, having recesses or notches therein, of a threadguide securedto said bar in front of a notch. and comprising a guide wire or barattached at each end. and a second parallel guide wire or bar attachedat one end and free at the other, substantially as shown and described.

In a twisting or spinning machine, the combination with the knottingguide-bar, of a tln'ead-guide for the knotting guide-bar, comprising twoparallel strands of wire, connected at one end by an eye forming meansof attachment for the guide, and disconnected at their other ends, withone end free to receive the thread thereunder, substantially as shownand described.

9. In a twisting or spinning machine, the combination with the lowerguide-wire rod adapted to have a traverse motion, and the upperguide-wire rod adapted to have a traverse motion, of a rigid bar orplate detachably connected at each end to each of said rods intermediatethe ends of each rod, to communicate the traverse motion of one to theother, substantially as shown and described.

10. In a twisting or spinning machine, the combination with the lowerguidewire rod adapted to have a traverse motion communicated thereto,and the upper guide-wire rod adapted to have a traverse motioncommunicated thereto, of a connection intermediate said guide-wire rods,detachably connected at each end to each of said rodsintermediate theendsof each rod, to communicate the traverse motion of one to the other,substantially as shown and described.

11. In a twisting or spinning machine, the combination with thelinotting guide -bar, supporting-arms therefor detachably connected witha rock-shaft, and said rock-shaft, of a rocker-lever for said shaftcomprising three parts, a part fast on the shaft, a part having apivotal adjustment thereon, and a part having a longitudinal adjustment,substantially as shown and described.

12. In a twisting or spinning machine, the combination with the knottingguide-bar, and a rock-shaft carrying the supporting-arms of saidknotting guide-bar, of a rocker-lever for rocking the rocl shaft,comprising the lever proper fast on said shaft, a pivotal adjustingpiecehaving a hub loose on said shaft, and the engaging end adjustablelongitudinally, substantially as shown and described.

13. In a twisting or spinning machine, the combination with the knottingguide-bar, and

a rock-shaft carrying the supporting-arms of said guide-bar, of arocker-lever for said shaft, said lever made in three parts andadjustable as to its length and as to its rocking position, of a cam andgear for operating said lever, said cam and gear adjustable relativelyto said lever, substantially as shown and described.

1%. In a twisting or spinning machine, the combination with a journal ofthe upper or lower rolls, of a shell or collar on said journal andconnected therewith by a key and keyway, and having a clearance forrotary movement, for the purpose stated, substantially as shown anddescribed.

15. In a twisting or spinning machine, the combination with a journal ofthe upper or lower rolls, of a shell or collar on said journal to drivethe roll through the gear splined on said shell, said shell connectedwith said journal by a key extending into and having a slight rotarymovement or clearance in a keyway, for the purpose stated, substantiallyas shown and described.

.16. In a twisting or spinning machine, the combination with thelower-roll gear, the upper-roll gear, and thelumtting-guide-baroperating gear, of a chain of gears for operating thesame, comprising a spur-gear, and a change-gear for each of said parts,to regulate the speed of each part, substantially as shown anddescribed.

17. In a twisting or spinning machine, the combination with thelower-roll gear, the upper-roll gear, and theknotting-guide-bar-operating gear, of a chain of gears for operating thesame, comprising a spur-gear, and a change-gear for each of said parts,and an independent adjustment for each change-gear, and a chain of threegears for driving all the spur and change gears, substantially as shownand described.

18. In a twisting orspinning machine, three sets of gears for operatingthe upper and lower roll gears, and the gear of the knotting-guidebarmechanism, each set of gears operated from the same gear through a chainof three gears, and adjustable independently of each other, to vary thespeed of the rolls, and of the knotting-guide-bar gear, independently,substantially as shown and described.

19. In a twisting or spinning machine, the gears of the upper and lowerrolls, and the intermediate mutilated gears, all having sharp or pointedteeth, substantially as shown and described.

HERBERT G. BIGEDE.

\Vitnesses:

JOHN G. Dnwm', M. Haas.

